The Daily App Deals post is a round-up of the best app discounts of the day, as well as some notable mentions for ones that are on sale.

The Best

Percent Calculator - Pro (Amazon Appstore) Previously $1.00, now Free. Percent Calculator - Pro for Android puts a variety of real-world percentage problems just a couple taps away. Figure out percent increases, decreases, tip amounts and more with a minimum of puzzling and pondering. Get it for Free. (via Apps-aholic)